[LTP] [PATCH] shell: add echo command check

[Petr Vorel]

Hi Mataotao,

> Hi Mataotao,

> First, thank you for creating new tests for LTP.

Thank you!

> But from what I know LTP now is mainly a face-to-Linux Kernel side test
> suite,
> rather than the userspace or command line test (it had some but slowly being
> removed from the test suite).

+1, these would be better placed in coreutils or the shell project you target.

> 'echo' is daily popular used but belongs to the coreutils package, it's not
> the core
Also, 'echo' is not only binary from coreutils, but also a shell builtin.
Moreover, 'echo' is known for various incompatibility across implementations
(printf is suggested to be used if compatibility is needed).

Kind regards,
Petr

> of kernel part. I guess maintainers have no passion for reviewing patch
> like this:(.